Terrible service- ''Urgent situation'' but no assistance from Msunduzi Municipality

I have recieved an increased water account for my residential address in Pietermaritzburg. My parents have been back and forth seeking assistance regarding this concern. The municipality said to them that there is a water leak and have not responded. I have checked the meter when no water is used and there is no water leak. I have a great concern that the municipality did not come to investigate this issue. The meter may be over reading currently and the following account is going to be a major concern again. I have tried calling the call centre more than 8 times today without anty answer.